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Purpose: To investigate the effects of C-type natriuretic peptide (CNP) on human granulosa cell growth and elucidate its regulatory mechanisms.
Methods: A human non-luteinizing granulosa cell line (HGrC) developed from small antral follicles was used to assess the impact of CNP on cell proliferation and estrogen synthesis. cGMP production via the guanylate cyclase domain of the CNP receptor, natriuretic peptide receptor 2 (NPR2), was confirmed.
Sustanon suppresses spermatogenesis and increases cell death.
Transl Androl Urol
December 2024
Department of Pathology, Pediatric and Perinatal Pathology, University of Miami Miller School of Medicine, Miami, FL, USA.
Background: Anabolic-androgenic steroids (AAS) are synthetic derivatives of testosterone. Sustanon, dissolved in peanut oil, is an AAS used by athletes to build muscle mass. This study aims to examine the effects of Sustanon on male reproductive health.
View Article and Find Full Text PDFEffects of Varying Light Durations on Sperm Quality in Rams.
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December 2024
College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
This investigation aimed to study the effects of varying light exposure durations on ram sperm. A total of 25 rams were randomly divided into five groups. The control group was exposed to light durations of 12 h, while the experimental groups were exposed to light durations of 14, 16, 18, and 20 h.
View Article and Find Full Text PDFThe Impact of Triptorelin on Hormone Levels in Human and Its Metabolite Confirmation Using Liquid Chromatography-Ion Trap/Time-of-Flight Mass Spectrometry (LC/MS-IT-TOF) and Liquid Chromatography-Orbitrap (LC-Orbitrap) for Doping Control Analysis.
Drug Test Anal
January 2025
Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok, Thailand.
Triptorelin, a synthetic gonadotrophin-releasing hormone (GnRH), is mainly used in the clinical treatment of prostate cancer. The mechanism initially stimulates luteinizing hormone (LH) and testosterone secretion followed by suppression, resulting in a reduction in cancer progression. However, GnRHs are prohibited in doping control because of the indirect surge of LH and testosterone.
View Article and Find Full Text PDFEffects of mifepristone, a model compound with anti-progestogenic activity, on the reproduction of African clawed frog (Xenopus laevis).
J Hazard Mater
December 2024
University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zátiší 728/II, 38925 Vodňany, Czech Republic. Electronic address:
This is the first study on how a substance with anti-progestogenic activity affects amphibian reproduction. Mifepristone, a synthetic anti-progestin used in abortion pills, was chosen as model compound. African clawed frog (Xenopus laevis) females were exposed to four mifepristone concentrations (0.
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